Machine for polishing cutlery.



No. 765,243. PATENTED JULY 19, 1904.

O. L. JOY.

MACHINE FOR POLISHING CUTLERY.

APPLICATION FILED mm: 22. 1903.

NO MODEL. 3 SHEETS-SHEET 1.

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j PATENTED JULY 19, 1904.

0. L. JOY. MACHINE FOR POLISHING GUTLERY.

APPLIUATIONIILED JUNE 22. 1903.

3 SHEETSSHEET 2- ull N0 MODEL.

No.- 765,243. PATENTED JULY 19, 1904.

c. L. JOY, MAGHINE FOB. POLISHING OUT'LBRY.

- APPLICATION FILED JUNE 22. I903.

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WITNESSES:

, zm IN'VENTOR @@z (KM; 1 @mxmQQv BY l I l Patented July 19, 1904.

PATENT OFFICE.

CHARLES L. JOY, OF NEWV HAVEN, CONNECTICUT.

MACHINE FOR POLISHING CUTLERY.

SPECIFICATION forming part of Letters Patent No. 765,243, dated July 19,1904.-

Application filed June 22, 1903- To all whom, it pea/y concern:

Be it known that I, CHARLES L. JOY, a citizen of the United States, anda resident of New Haven, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inMachines for Polishing Cutlery, of which the following is aspecification.

My invention relates to automatic machines adapted for polishingcutlery, its object being to simplify the construction by as few movingparts as possible and to so arrange such parts that but little wear issustained.

To this end my invention consists in a pendulum-frame adapted toautomatically oscillate across the face of the polishing-wheel, and a Iknife-support frame pivotally supported to the lower end of saidpendulum-frame and adapted to move to and from said frame and at rightangles to said pendulum-frame, the pivotal point of. the pendulum-framebeing placed so far above the polishing-wheel as to be out of reach ofthe flying particles of polishing material as to be fully protectedagainst wear.

To enable others to understand my invention, reference is had to theaccompanying drawings, in which- Figure 1 represents a front elevationof the machine and broken view of its legs, polishing-wheel, spring forthe knife-support frame, and trip-rod. Fig. 2. is a side elevation andbroken view of the polishing-wheel looking in the direction of arrow ofFig. 1. Fig. 3 is an upper view of the swiveled knife-support, bar onwhich it is swiveled, and sectional view of the knife-supporting framethrough line 3 of Fig. 1. Fig. 4c is a broken view of the pendulum-frameand rear view of the ratchet-wheel that actuates the cam for lifting theknife-support looking in the direction of arrow 6 of Fig. 2. Fig. 5 is abroken view of the polishing-wheel and pendulum-frame with theknife-support in position for polishing. Fig. 6'is a similar Viewshowing the knife-support raised and its frame thrown back from thepolishing-wheel. Fig. 7 is a broken view of the machine-uprights,showing the pendulum-frame-operating shaft pivotally supported theretoand dropped out of Serial No. 162,495. (No model.)

engagement with the worm-gear that actuates the pendulum-frame. Fig. 8is a detail upper broken View of the knife-support with a knife thereon.

Its construction and operation are as follows:

1 represents the machine-bed; 2 and 3, uprights thereon; 4, across-piece connectingthe uprights at the top.

5 is a pendulum-frame pivotally supported on the stud 6, projecting fromthe cross-piece 1. This frame is adapted to oscillate back and forthacross the face of the large polishingwheel 7, as follows: 8 is the maindrivingshaft, journaled in the standards 9 and 10, mounted on the bed 1.On one end of this shaft is mounted the polishing-wheel 7, and on theopposite end the tight and loose pulleys 11 and 12 by which it isdriven.

13 is a shipper-shaft continuously rotated through the pulleys 14 and 15and the belt 16. This shaft is journaled in the bearings 16, 17, and 18.The center bearing 17 is pivotally supported on the pin 19, Fig. 1,projecting from the bracket 20, secured to the upright 3. The outerbearings 16 and 18 have the rearwardly-projecting studs 21 and 22, whichpins pass through elongated holes 23 and 24: of the uprights 2 and 3,and said studs are properly secured against withdrawal by means (notshown) on the inside of said uprights.

25 is a worm on the end of shaft 13, adapted to be brought intoengagement with the wormgear 26, mounted on the short shaft 27, Fig. 2,and journaled in the box 28, secured to the upright 2. Thependulum-frame 5 is actuated through the medium of the worm-gear 26 bymeans of the two-part connecting-rod 29, one end of which rod ispivotally supported in the forked head 30, adjustably supported on thevertical face of the gear 26, which adjustable feature is adapted toincrease or decrease the swing of said frame. The opposite end of rod 13is pivotally supported in the forked head 31, which head in turn ispivotally supported on the stud 32, projecting from said frame. (Shownmore clearly in Fig. 1.) This forked head 31 is an exact duplicate ofthe forked head at the opposite end of the rod 13.

33 is a stud projecting from a bracket (not shown) attached to theupright 3, which stud projects through the radial slot 35 of thependulum-frame and carries the washer 36. This arrangement steadies saidframe in its oscillatory movement. The engagement of the worm 25 andworm-gear 26 is assured by means of the lever 37, pivotally supported onthe screw 38 and the contact of its finger 37 with the upper edge of themovable bearing 16. 39 is a spring which holds said lever in this lockedposition, and 40 is a rod adapted to be actuated by the foot to bringthe shaft 13 in a horizontal position and the worm and gear intoengagement to operate the pendulumframe.

41 is a short frame pivotally supported on the pin 42, passing throughthe lower end of the pendulum-frame, and it is adapted to have aswinging movement on said pin at right angles to the pendulum-frame.

43 is a cross-bar carrying the brackets 44, which brackets are pivotallysupported on the pins 45, projecting through the sides of the frame 41and seen more clearly at Fig. 3.

46 is the knife-support, having the projection 46", which projectionextends through an opening in the cross-bar 43, so that by means of theprojection 46 and the pin 47 the knifesupport is pivotally supported tosaid crossbar. 48 represents adjusting-screws projecting through saidbar, whose pointed ends engage with the knife-support for the purpose ofadjusting the position of said support with respect to face of thepolishing-wheel, so as to place the knife-blade 49 in proper relation tosaid wheel. The knife is held firmly against the support 46 by means ofthe cam 50 engaging with the knife-handle 49. The knife-support isadapted to be moved horizontally across the face of the polishing-wheelthrough the medium of the pendulum-frame and is adapted to move througha circular arc described from the pins 45 as follows: 51 and 52 are two'small lift-rods guided in lugs 53 and 54, located on the inside of thependulum-frame 5.

51 and 52 are two short rods guided in the lugs 55 and-56 on the insideof the knife-support frame. 57 and 58are short pieces of chain adaptedto make a flexible connection with these upper and lower rods, and 59and 60 are other short pieces of chain for making a flexible connectionwith the cross-bar 43, to

which the lower ends of these latter chains are attached.

61 (see also Fig. 4) is a cross-bar adjustably secured to the upper endsof the rods 51 and 52, and it has the pin 62, adapted to be engaged bythe lift-cam 63, mounted on the short shaft 65. This shaft is journaledin the sleeve-bearing 66, Fig. 2, of the pendulumframe. 67 is aratchet-wheel on the other end of this shaft, which is rotated step bystep through its alternate engagement with the stationary pawl 68,mounted in the support 69, adjustably secured to the bracket 70 of theupright 3. This support can be adjusted on the bracket in such a mannerthat the ratchet-wheel 67 canbe made to turn fast or slow, as required,it being understood that by means of the cam 63 and its engagement withthe pin 62 of the upper cross-bar 61 the knife-support is carriedthrough the circular are before mentioned.

71' is an angular-shaped arm secured to the inside of thependulum-frame,whose under surface is adapted to be engaged by the circular disk 72when the knife-support has been elevated so as to bring the knife-bladeout of contact with the polishing-wheel, and thus carry theknife-support frame out and away from the wheel, as shown at Fig. 6. Thechain connections between the long and short sections of the lift-rodsand between the short lift-rods and the knife-support permits the swingof frame 41 on its pivotal support on the pendulum-frame, for it wouldbe impossible to move the frame 41 without such chain connections. Thedisk 72 is mounted on the rod 73, which in turn is anchored in theblocks 74 and 75, adjustably secured to the short rod-sections 51 and52.

When the knife-support is sufliciently elevated, the trip-arm 76,adjustably secured to the lift-rod 52, Fig. 1, will have been carried upby such rod until it engages with the inclined projection 37 of thelocking-lever 37, which engagement will release the engagement of saidlever with the box or hearing 16, when the spring 77 will cause theshaft 13 to tilt and disengage the worm 25 from the worm-gear 26 andbring the pendulum-frame to a standstill.

When the knife-support is in its elevated position, as shown at Fig. 6,the finished knife is removed and replaced by another and thependulum-frame is again set in motion, and when the cam 63 drops offfrom the pin 62 the knife-support will drop to bring the knifeblade on aline and in proper relation with the polishing-wheel, when the spring 78will carry the frame 41 forward toward said wheel to bring the knife incontact therewith. This spring 78 keeps the knife-blade in flexiblecontact with the polishing-wheel, so that all even and uneven parts ofthe blade are touched by the wheel.

The polishing-wheel is made exceptionally large for machines of thischaracter in order to insure an increase of polishing-surface with theleast numberv of revolutions.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination, in a polishing-machine of the character described,comprising, a pendulum-frame pivotally supported above thepolishing-wheel so that such pivotal support is protected against thefalling particles of emery or other like polishing material, meanswhereby said frame is caused to oscillate across the face of thepolishing-wheel, a second or knife supporting frame pivoted to the lowerend of the pendulum-frame and adapted to swing at right angles thereto,a knife-support connected to said second frame, so that, through thedirect instrumentality of the oscillating movement of thependulum-frame,

said second frame and knife-support are actuated and the pendulum-framebrought to a state of rest at a predetermined point, for the purpose setforth.

2. The combination, in a polishing-machine of the character described,comprising, a pendulum-frame adapted to oscillate across the face of apolishing-wheel and a second or knifesupport frame pivotally supportedat the lower end of said pendulum-frame and adapted to swing at rightangles thereto, a cross-bar pivotally supported to said second frame andadapted to move through a circular arc, means for operating it, aknife-support pivotally connected with said cross-bar, and means wherebysaid support is longitudinally adjusted with respect to thepolishingwheel, for the purpose set forth.

3. The combination, in .a machine of the character described,comprising, a pendulumframe adapted to oscillate across the face of apolishing-wheel, and means for operating it, a knife-support framepivotally supported at the lower end of said pendulumframe adapted toswing on its pivotal support at right angles to said pendulum-frame, across-bar pivotally supported thereto adapted to have a verticalmovement, a knife-support pivotally connected to said cross-bar andadapted to be longitudinally adjusted thereon, lift-rods adapted tooperate said cross-bar on its pi'votal support, a shaft journaled in thependulum-frame carrying a ratchet-wheel on one end and a lifting-cam onthe other end, means connected with said rods to be engaged by said camto elevate the knife-support, for the purpose set forth. V

4. The combination, in a machine of the character described, comprising,a pendulumframe adapted to oscillate across the face of apolishing-wheel, and means for operating it, a knife-support framepivotally supported to said pendulum-frame adapted to move at rightangles thereto and from the polishing-wheel, a cross-bar pivotallysupported to said knifesupport frame, a knife-support pivotallyconnected to said bar and longitudinally adjustable thereon, upperlift-rods journaled in the pendulum-frame, a shaft carrying aratchetwheel on one end and a cam on the other end journaled in saidframe, means on said rods adapted to be engaged by said cam to lift thesame, lower lift-rods journaled on the knifesupport frame, flexibleconnections between the lift-rods of the two frames and flexibleconnections between the lower lift-rods and the knife-support, means onthe lower liftrods and pendulum frame for moving the knife-support awayfrom the face of the polishing-wheel when the knife-support is elevated,for the purpose set forth.

Signed at New Haven, in the county of New Haven and State ofConnecticut, this 29th day of May, A. D. 1903.

CHARLES L. JOY.

Witnesses:

STEPHEN D. BRADLEY, SAML. J. CHAFFEE.

